1 Guru bead - Large 3 hole conch shell prayer mala Guru bead 13-14 mm - GB031 1 Guru bead - Large 3 hole conch shell prayer mala Guru bead 13 -14 mm - GB031 Size : Guru bead is approx 13 - 14 mm wide and column bead is approx 9 -12 mm height . Quantity - 1 guru bead and 1 column bead